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1.In this station, please arrange the lever arm and fulcrum so that the alien toy can lift the brick. How did you have to arrange everything? Compare the location of the alien toy and the brick, relative to the fulcrum. Compare the final elevation of the brick to the original elevation of the alien.

2/5: I put the brick on the end of the right side of the wood and the alien on the other side and i put the fulcrum in the correct position to make the brick stay up in the air so that the alien weighed more.

3/5: For the Alien to lift the brick you would need to move the brick and the fulcrum around. For the alien to lift the brick, I would put the fulcrum all the way to one side, then I would put the brick on the side where the fulcrum is closest to, then put the alien on the other end and the brick would go up. Kind of confusing to explain in writing but that is how you arrange the brick and fulcrum so the alien can lift it.

4/5: I arranged the experiment as follows, The brick on the very end of the the board, the fulcrum very close to the brick and the alien on the other end of the board. The alien has to be completely at the end of the board so it can lift the brick in the air. The brick has to be next to the fulcrum so the alien can lift it. The alien fell way down and the brick only rose a tad bit.

5/5: The fulcrum was placed closely to the brick, near the end of the lever arm, and the alien toy was on the other end of the lever arm. Since the alien toy weighed significantly less than the brick, the alien toy needed to have more wood on its "side" of the fulcrum in order to lift the brick. The brick weighed much more than the alien toy, therefore it couldn't have a lot of wood on its "side" of the fulcrum in order to be raised by the alien toy. The alien raises much higher than the brick because of its distance away from the fulcrum. Because the alien was farther away from the fulcrum than the brick was, it raised higher than the brick. When the alien lifted the brick, it moved a much greater distance than the brick did when it was raised by the alien.

2. In this station, arrange the "father" weight and the "son" weight so they balance. How did you have to arrange everything? Compare the location of the "father" weight and the "son" weight, relative to the fulcrum. Compare the peak elevation of the "father" to the peak elevation of the "son".

3/5: In this station we had to arrange the father and son weight so that they balanced. The way that I had arranged he two weights and the fulcrum was that the fulcrum was in the middle, the father weight was very close to the fulcrum on one side and the son weight was on the other side of the fulcrum at the edge of the plank of wood. The location of the father and son weights relative to the fulcrum were very different. The father weight was very close to the fulcrum on one side and the son weight, on the other side, was at the edge of the wood.

4/5: For the father son balance board if it is not arranged perfectly it won't work. Since the father is heavier than the son the son must be farther than the father. First we placed the father and son at the same point. then we moved the son farther away from the fulcrum to try and balance out the weight of the dad. Then when we found the correct distance we found that the father had to be closer to the fulcrum ad the son had to be farther.

5/5: For the weight to be balanced the father weight had to be closer to the middle about half way. The son weight had to be closer to the end so the weight could be even. The father weight was closer to the fulcrum than the son weight. The peak elevation of the father weight was a lot less than the peak elevation of the son because the son was farther from the fulcrum and the father was closer. This is true for all levers, to lift a heavy weight you want to place it closer to the fulcrum than your other weight. The rule for that is twice the weight twice the distance.


Do you see the differences?